All categories

4 years ago

If the temperature of a reaction is increased, the reaction proceeds at a much quicker rate because the

Chemistry

1 answer:

alukav5142 [94]4 years ago

6 0

Explanation:

When we increase temperature of a substance then bond between the atoms will start to break and the molecules will move apart from each other. As a result, there will be increase in number of collisions between the molecules. Thus, reaction will occur at a faster rate.

Also, K.E = $\frac{3}{2}kT$

where k = boltzmann constant

T = temperature

Hence, kinetic energy is proportional to temperature. So, more is the temperature more will be the kinetic energy. Therefore, more will be the rate of reaction.

You might be interested in

at a fixed temperature and pressure, a cylinder contains equal volumes of o2 and an unknown gas, weighing 20.0 g and 17.5 g resp

sukhopar [10]

At a fixed temperature and pressure, a cylinder contains equal volumes of O2 and an unknown gas. The identity of the unknown gas CO.

The number of moles of a given substance is calculated by dividing the mass by the molar mass.

The number of moles of O₂ = $\mathbf{=\dfrac{20.0 \ g}{32 \ g/mol}}$

= 0.625 moles.

Based on the given assumption, at fixed temperature and pressure;

Let assume that the number of moles of the unknown gas is = 0.625 moles

The molar mass of the unknown gas can be estimated as:

$\mathbf{= \dfrac{mass}{number \ of \ moles}}$

$\mathbf{= \dfrac{17.5 \ g}{0.625 \ moles}}$

= 28 g/mol

Therefore, we can conclude that the unknown gas is CO.

Learn more about gases here:

brainly.com/question/1369730?referrer=searchResults

5 0

2 years ago

A textbook is an example of a

satela [25.4K]

Answer:

a standard case of pneumonia.

primary source

Be safe and have a day

∵∴∵∴∵∴∵∴∵

⊕ΘΞΠΤ⊕

∵∴∵∴∵∴∵∴∵

4 0

3 years ago

Read 2 more answers

What is a renewable resource on Earth? minerals coal wind petroleum

scoundrel [369]

Answer:

Wind

Explanation:

Wind turbines make energy by the movement of the natural force on earth called 'wind' and renewable resources are resources that can be made from natural and environment-safe objects or things (e.g. Water, Geothermal Heat, The Sun, and Wind)

4 0

3 years ago

A student wants to prepare a solution of cobalt(II) fluoride with a known molarity.

swat32

Answer:

$\large \boxed{\text{1.52 g}}$

Explanation:

1. Calculate the moles of CoF₂ needed

$n = \text{0.100 L} \times \dfrac{\text{0.157 mol}}{\text{1 L}} = \text{0.0157 mol}$

2. Calculate the mass of CoF₂

$m = \text{0.0157 mol} \times \dfrac{\text{96.93 g}}{\text{1 mol}} = \text{1.52 g}\\\\\text{ The student must measure out $\large \boxed{\textbf{1.52 g}}$ of cobalt(II) fluoride}$

5 0

4 years ago

Write a net ionic equation for the reaction that occurs when excess hydroiodic acid and nickel(II) sulfide are combined.

tiny-mole [99]

Explanation:

Step 1: Write the balanced "molecular" equation:

$2HI(aq) + NIS (s) → NiI₂(aq) + H₂S(g)$

Step 2: H₂S is written in molecular form. Consult the solubility and net ionic equation rules on the information page to determine which of the other substances will dissociate:

$2HI(aq) + NIS (s) → NiI₂(aq) + H₂S(g)$

yes no yes

Step 3: Dissociate all soluble salts, strong acids, and strong bases (except calcium hydroxide). Leave together all "not soluble" salts and weak acids or bases:

${2H₃O}^{ + } (aq) + {2I}^{ - } (aq) + NiS(s)→ { Ni}^{2 + }(aq) + {2I}^{ - }(aq) + H₂S(g) + 2H₂O(l)$

Step 4: Cross out "spectator ions" that appear on both sides of the reaction (these ions do not participate in the chemistry) and rewrite the "net" reaction using the smallest possible coefficients:

${2H₃O}^{ + } (aq) + NiS(s) → { Ni}^{2 + } (aq) + H₂S(g) + 2H₂O(l)$

4 0

3 years ago